Ventilating and heating means for inclosed vehicles



Aug. 3 1926. 1,594,894 I A. F. MASURY VENTILATING AND HEATING MEANS FOR INCLOSED VEHICLES Filed Nov. 10, 1924 STE- 5 IN VENTOR fllfred FMOSur Patented Aug. 3, 1 926. a

; o t i 1 nt gnveliesthe e xh ;peaie inr nt etraincreased vices which n vacuat ng the v t ated a r,

te Partial ui m. Vlfllilli t e rei d was object onable because c run nduced v the reou'gh f fissures or other openlng; along: withthe ncom ng fresh an;

prevent this seepa e of I to the interior of theg rboidy is 1. q l 591: hQrVQ j Qt I a ti fro v this. e a tilatin the method of -jienedi er il iat e. pt ent-t afiflllf Reveal i1 ae r osphie A, whereby no t-Pa e Qi, ad f tsa Ii PlYIIllt-Lially 'aw-passen'ger vehleleto WhlCll lS applied ted. More particularly adfantag .is'talren the ventilatingldevice accordingflto-ithe vi 1 h 'i er arda-metiee 9i t er-rveh a CQDt-iIlIlOH M Q- of-amqinm a e. jfor-: ward part oitheinterio a of 5th fbbfdy to. re-f sult in' ,.,an:; increase; of pressure tlije're witliin which :fiorcesfihe; vitiated air,v outgot. the body t Thls action mayib f urther, abettedby the creation; of a partaallrvacuum the vents which are arranged in- Sllch mannerthatthe creation of such' vacuum is a natura1"cons.'e+ quence otthegioryeardiamotloncofithe vehicle:

If desired. heat may also be availed of-to sure. An,-emhodirnentfifif"the;invention-?by WhlCh the method may be practicedmay take the form of a tube open at both ends, extending longitudinally the length of the body and disposed in the upper part thereof. It -is in communication with the interior of therind, Ann time ma ie, lea-1. la r 149,

mene n tei t iQI-Qin' i free raii in icl ed motbrbusesiwillf t flbq y s nd-i t e-eteatien and a ntenanc ventionpwherein heat/isnavailed of 0 Apartment 0* of a emot or out through the vents Airs .ronfmcnosnnvnnrcmis.

,open1ngs., r\;'hich carryl with, them dus .and .the =like areprevented; Theventilating-fi l 1, means I may, also; be availed of, tojheatithe "in-f e 0 @bodiment texhaust gasesirmay be led; through i .a conduit in; the! tube, whereby heat isim v partedtontheair-being-forced intorthe; body: which has the further advantage o'f-cincreas- .ci-litate' ifthe 4 ventilation an the" bodygq:

a Referringttothefigureithe passenger com :yeliicleindicated in is adapted to be 'snpplied- We-it 1 fIBShzIilII andito have: vitiatedair withdraw-n V "therefrom by the-ventilatin tleVicze accijlard ling toe-the present inventio lntvthe-topnfi a the vehicle a tubebis "shown: extending Ion rgenerallat at between the tube-rand: the: interiorof the i augment the production of the desired presb trated embodiment-six in number 5 5 62 'b, b" and b". It is intended that the first three of these ducts b, b, b, constitute means to permit the entrance of air into the interior of the vehicle, while the last three I), b and b may be availed of as desired to permit the exit of vitiated air. Inasmuch as it is desired to build up and maintain a pres sure greater than that of the surrounding atmosphere within the interior of the vehicle the outlet passages are ,adapted to be controlled by means of valves or other devices, shown in the figure asshutters i, z" and i. In operation, as the vehiclemoves forwardly in the direction indicated by the arrow (2, air is caused to enter the mouth I) as shown by the arrows e at that end of the tube and e is conducted downwardly vinto the interior 110 I of the vehicle through the ducts b, b, 5''."

Most.advantageously a bafiie may wholly or partly close the tube b between say the last inlet 6 and the first outlet b to contribute to directing the incoming air through theinl'ets into the body. Thus a pressure is created within the vehicle greater than that of the surrounding atmosphere which constantly tends to build up due to the continued influx of air through thetube b The forward motion of the. vehicle also has a tendency to create a partial reduction of pressure at the rear end]; of the tube b and the pressure diflerential thus established between the interior of the vehicle and the exit b of the tube induces a flow ofair from theforward part of the vehicle as at f to the rearward portion as at f and ,,an upward and outwardmovement of the vitiated air at f through the vents b, b and or 6 (depending, of course, upon which of the shutters i, z" and i are closed) and outthrough the end b of the tube 1) as indicated by the arrows g. 'Due" to the higher-than-atmos-i pheric pressure of the air within the vehicle any possibility of'a seepage of dust into the interior of the vehicle through cracks or v openings in the bod -is precluded. If desired, of course, a ust screen may be installed in the mouth I) of tube b.

Means are illustratedifor heating the air supplied to the interior of the vehicle not only to raise the temperature of the body in the interest of the comfort of the passengers but also to assist in creatingfthe desired fpressure therein due to the action" of the heat in expanding the air. In the illustrated embodiment the heating of the air is effected by. conducting the exhaust gases through a conduit h extending. longitudinally within the tuhe rand in communication with the exhaust'manifold h of the motor through a vertically extending duct 72. The

air enteringthrough the mouth I) of tube 6 comes into contact with pipe it through the medium of whichiit absorbs some of the heat of the exhaust gases flowing therethrough.

Due to the increase of temperaturethus'ef fected the air expands to.- create a further increase of' re ssure as it enters the interior Oftllfi vehic e. Pipe h may extend to within a short distance of the rear end of the tube b and form therewith a nozzle, the action of which assists in expelling vitiated "air from the rear end of the tube on the common principle of the ejector.

The operation of the-device Wlllbe apparent from .the foregoing descriptionu Because of the inertia of the air within thevehicle the forward motion thereof will cause a building up of pressure within the vehicle upon the flow of air into the ,mouth'of the ventilating tube and the addition of heat to the air in the forward part of the tube will further increase the pressure of this air and assist in obtaining the desired result. The. maintenance within the vehicle of a pressure greater than that of the atmosphere will prevent the seepage of dust through openings in the vehicle body.

Various modifications may be made-in the shape and disposition of the ventilatingtube The combination with an inclosed vehicle,

of ventilating means comprising a longitudinally extending tube open at both ends, ducts connecting the interior of the vehicle. with j-.

the interior of the tube, means to control the e flow or air in certain of the ducts, and a con-' duit to conduct exhaust gases through the interior of the; tube, the rear end of said tube andcjonduit forming an ejector for the air in the tube. a This specification signed Nov. A. D. 1924.

ALFRED F. MAsURY.

this 6t ll day a '95 

